Forum Discussion
otrfun
Dec 15, 2013Explorer II
esjay wrote:I can't speak for the Lexus engines; however, the 2007-2009 Tundras with the 4.7 engine have the camshafts driven by a belt (similar to a typical serpentine belt). Toyota recomends they be replaced every x amount of miles. Toyota replaced the 4.7 engine with the 4.6 in 2010. The camshafts on the 2010-2013 4.6 Tundras are chain driven (internally lubricated by the same oil that lubricates the engine). Under normal operating conditions they will never need replacing.
400,430,460 Lexus cars take a belt. It's not as expensive as some shops would like you to believe. A good mechanic can change one out in two hours. The timing belt makes for a very smooth, quiet engine. All of the Lexus cars have alum. block and heads.
You guys have me confused as to whether the 460 and 470 trucks take a belt or not.
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